In the circuit shown below, the key is closed at . The current through the battery is
Inductor
Calculate the Current
We know that, at , inductor behave like an infinite resistance.
So, at ,
Now, at , the inductor behaves like a conductive wire.
So,
The current in the circuit stabilizes after a certain amount of time has passed, and the inductor serves as a closed switch with a saturation current running through it.
As a result, the current flowing in the circuit in question will be a contribution of the parallel combination of the two resistances.
Hence, the current is at and at .